// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2008 Novell, Inc. (http://www.novell.com)
//
// Authors:
//	Chris Toshok (toshok@ximian.com)
//	Brian O'Keefe (zer0keefie@gmail.com)
//

using System;

namespace System.ComponentModel {

	[AttributeUsage (AttributeTargets.Property | AttributeTargets.Method)]
	public sealed class PropertyFilterAttribute : Attribute
	{
		public static readonly PropertyFilterAttribute Default = new PropertyFilterAttribute(PropertyFilterOptions.All);

		private PropertyFilterOptions options;

		public PropertyFilterAttribute (PropertyFilterOptions filter)
		{
			options = filter;
		}

		public PropertyFilterOptions Filter {
			get { return options; }
		}

		public override bool Equals (object value)
		{
			if (!(value is PropertyFilterAttribute))
				return false;
			return ((PropertyFilterAttribute)value).options == options;
		}

		public override int GetHashCode ()
		{
			return options.GetHashCode ();
		}

		public override bool Match (object value)
		{
			if (!(value is PropertyFilterAttribute))
				return false;

			PropertyFilterOptions other = ((PropertyFilterAttribute)value).options;
			PropertyFilterOptions common = other & options;	

			return common == options;
		}
	}
}